Ohonin Yuriy wrote:

I'm trying to use such a code:

type TVarList = object Items:array of TVar; count:cardinal; ..... end;

In Delphi and FPC it works fine, but in GPC i get an error

45: warning: missing string capacity -- assuming 255 49: error: syntax error before `of'

Is it possible to use dynamic arrays in gpc?

gpc does not implement Delphi style dynamic arrays. As Adriaan wrote you can get very similar functionality using Extended Pascal schema and pointers. Of course Extended Pascal schema have quite different syntax. Also memory management is different: with pointers to schema you must manually deallocate arrays.